KFU. Card publication. Influence of the nozzle shape on sound generation in a jet-driven Helmholtz oscillator

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FEDERAL UNIVERSITY

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INFLUENCE OF THE NOZZLE SHAPE ON SOUND GENERATION IN A JET-DRIVEN HELMHOLTZ OSCILLATOR

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Marfin Evgeniy Aleksandrovich, author

Plakhova Ekaterina Allanovna, author

Other authors

Abdrashitov Aleksey Allanovich, author

Bibliographic description in the original language

Abdrashitov A. A. Influence of the nozzle shape on sound generation in a jet-driven Helmholtz oscillator / A. A. Abdrashitov, E. A. Marfin, E. A. Plakhova // IOP Conference Series: Materials Science and Engineering. - 2020. - Vol. 927. - 012061.

Annotation

The excitation of pressure fluctuations by an air jet in the model of a Helmholtz oscillator, consisting of a cylindrical chamber with a nozzle in the front cover and an outlet opening in the rear one was studied. The influence of the shape of the nozzle in combination with the length of the chamber and the diameter of the outlet opening was considered. The amplitude-frequency spectra when changing the configuration of the oscillator and the Reynolds number in the allowable range was analyzed. The formation of the reverse flow area in a cylindrical nozzle and its influence on the intensity of the interaction of the jet with the flooded chamber volume are considered. The advantage of a nozzle with a profiled inlet providing a continuous flow in the nozzle and a top-hat profile of velocity at the nozzle exit are determined. The jet-driven Helmholtz oscillator can be used as a downhole emitter for intensifying oil production.

Keywords

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The name of the journal

IOP Conference Series: Materials Science and Engineering

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/159411/Abdrashitov_2020_IOP_Conf._Ser.__Mater._Sci._Eng._927_012061.pdf?sequence=1&isAllowed=y

URL

https://iopscience.iop.org/article/10.1088/1757-899X/927/1/012061/pdf

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=239070&p_lang=2

Resource files

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Abdrashitov_2020_IOP_Conf._Ser.__Mater._Sci._Eng._927_012061.pdf	0,86	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Marfin Evgeniy Aleksandrovich	ru_RU
dc.contributor.author	Plakhova Ekaterina Allanovna	ru_RU
dc.contributor.author	Abdrashitov Aleksey Allanovich	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Abdrashitov A. A. Influence of the nozzle shape on sound generation in a jet-driven Helmholtz oscillator / A. A. Abdrashitov, E. A. Marfin, E. A. Plakhova // IOP Conference Series: Materials Science and Engineering. - 2020. - Vol. 927. - 012061.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=239070&p_lang=2	ru_RU
dc.description.abstract	IOP Conference Series: Materials Science and Engineering	ru_RU
dc.description.abstract	The excitation of pressure fluctuations by an air jet in the model of a Helmholtz oscillator, consisting of a cylindrical chamber with a nozzle in the front cover and an outlet opening in the rear one was studied. The influence of the shape of the nozzle in combination with the length of the chamber and the diameter of the outlet opening was considered. The amplitude-frequency spectra when changing the configuration of the oscillator and the Reynolds number in the allowable range was analyzed. The formation of the reverse flow area in a cylindrical nozzle and its influence on the intensity of the interaction of the jet with the flooded chamber volume are considered. The advantage of a nozzle with a profiled inlet providing a continuous flow in the nozzle and a top-hat profile of velocity at the nozzle exit are determined. The jet-driven Helmholtz oscillator can be used as a downhole emitter for intensifying oil production.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	��	ru_RU
dc.subject	��	ru_RU
dc.subject	��	ru_RU
dc.subject	��	ru_RU
dc.title	Influence of the nozzle shape on sound generation in a jet-driven Helmholtz oscillator	ru_RU
dc.type	Articles in international journals and collections	ru_RU